using System;
using System.Text;
using System.Data;
using System.Collections;
using System.Collections.Generic;

using Framework;

namespace SchemaMonitor
{
    //Table-Row Class (Customisable half)
    public partial class CError
    {
        #region Constants
        //Join Expressions
        //private static string JOIN_SAMPLE = String.Concat(TABLE_NAME, " LEFT OUTER JOIN ", CSample.TABLE_NAME, " ON ErrorSampleId=SampleId");
        #endregion

        #region Constructors (Public)
        //Default Connection String
        public CError() : base() {}
        public CError(int errorId) : base(errorId) {}
        
        //Alternative Connection String
        public CError(CDataSrc dataSrc) : base(dataSrc) {}
        
        public CError(CDataSrc dataSrc, int errorId) : base(dataSrc, errorId) {}
        
        //Transactional (shares an open connection)
        protected internal CError(CDataSrc dataSrc, int errorId, IDbTransaction txOrNull) : base(dataSrc, errorId, txOrNull) {}        
        #endregion

        #region Default Values
        protected override void InitValues_Custom()
        {
            //Custom default values (e.g. DateCreated column)
            _errorCreated = DateTime.Now;

            //Member variables (e.g. for child collections)
        }
        #endregion
        
        #region Default Connection String
        protected override CDataSrc DefaultDataSrc()  { return CDataSrc.Default;  }
        #endregion
        
        #region Members
        //Foreign Keys
        
        //Child Collections  
        
        //Xml Data (as high-level objects)
        
        #endregion

        #region Properties - Relationships
        //Relationships - Foriegn Keys (e.g parent)
        
        //Relationships - Collections (e.g. children)
        
        #endregion

        #region Properties - Customisation
        //Derived/ReadOnly (e.g. xml classes, presentation logic)
        #endregion

        #region Save/Delete Overrides
        //Can Override base.Save/Delete (e.g. Cascade deletes, or insert related records)
        #endregion

        #region Custom Database Queries
        //For Stored Procs can use: MakeList (matching schema), or DataSrc.ExecuteDataset (reports etc)
        //For Dynamic sql, can use: SelectSum, SelectDistinct, SelectCount, SelectWhere (inherited methods)
        //                see also: SelectBy[FK], Search and Count (auto-generated sample queries)
        #endregion

        #region Searching (Optional)
        //Dynamic search methods: (overload as required for common search patterns, cascade the BuildWhere overloads)
        //   Public  x5 - Simple, Paged, Transactional, Count, and Dataset
        //   Private x1 - BuildWhere
        //See also in-memory search options in list class, such as GetBy[FK] and Search

        //Simple
        public CErrorList SelectSearch(string nameOrId /*, userId*/)  {   return SelectWhere(BuildWhere(nameOrId /*, userId*/));  } //, JOIN_OR_VIEW); }

        //Paged
        public CErrorList SelectSearch(CPagingInfo pi, string nameOrId /*, long userId */)
        {
            //pi.TableName = JOIN_OR_VIEW
            return SelectWhere(pi, BuildWhere(nameOrId /*, userId*/));
        }

        //Transactional
        public CErrorList SelectSearch(string nameOrId, /* long userId, */ IDbTransaction tx)   {   return SelectWhere(BuildWhere(nameOrId /*, , userId */), tx);   }   //, JOIN_OR_VIEW, tx); }

        //Dataset (e.g. ExportToCsv)
        public DataSet SelectSearch_Dataset(string nameOrId /*, long userId*/)   {   return SelectWhere_Dataset(BuildWhere(nameOrId /*, , userId */));   }   //, JOIN_OR_VIEW); }

        //Count
        public int SelectCount(string nameOrId /*, long userId*/)   {   return SelectCount(BuildWhere(nameOrId /*, , userId */));   }   //, JOIN_OR_VIEW); }

        //Filter Logic
        private CCriteriaList BuildWhere(string nameOrId /*, long userId */)
        {
            CCriteriaList where = new CCriteriaList();  //Defaults to AND logic
            
            //Simple search box UI
            if (!string.IsNullOrEmpty(nameOrId)) 
            {
                //Interpret search string in various ways using OR sub-expression
                CCriteriaGroup orExpr = new CCriteriaGroup(EBoolOperator.Or);
                
                //Special case - search by PK
                /* 
                int id = 0;
                if (int.TryParse(nameOrId, out id))
                    orExpr.Add("ErrorId", id); 
                */
                
                //Search a range of string columns
                string wildCards = string.Concat("%", nameOrId, "%");
                orExpr.Add("ErrorUserName", ESign.Like, wildCards);

                //Conclude
                if (orExpr.Group.Count > 0)
                    where.Add(orExpr);
            }
            
			//Other search Colums (customise as required)
            //if (long.MinValue != userId)   where.Add("ErrorUserId", userId);

            return where;
        }
        #endregion


        #region Cloning
        public CError Clone(CDataSrc target, IDbTransaction txOrNull) //, int parentId)
        {
            //Shallow copy: Copies the immediate record, excluding autogenerated Pks
            CError copy = new CError(this, target);

            //Deep Copy - Child Entities: Cloned children must reference their cloned parent
            //copy.SampleParentId = parentId;

            copy.Save(txOrNull);

            //Deep Copy - Parent Entities: Cloned parents also clone their child collections
            //this.Children.Clone(target, txOrNull, copy.ErrorId);

            return copy;
        }
        #endregion

        #region ToXml
        protected override void ToXml_Custom(System.Xml.XmlWriter w)
        {
            //Store(w, "Example", this..Example)
        }
        #endregion
    }
}